Home / 31,686.52-47,529.24-10,909.48

Finding the Fourth Proportional to 31,686.52, 47,529.24 and 10,909.48

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Solution

The fourth proportional to 31,686.52, 47,529.24 and 10,909.48 is: 16,364.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,686.52 : 47,529.24 = 10,909.48 : x
  2. Step 2: Convert to fraction form
    31,686.52/47,529.24 = 10,909.48/x
  3. Step 3: Cross multiply
    31,686.52x = 47,529.24 × 10,909.48
  4. Step 4: Simplify right side
    31,686.52x = 518,519,293.20
  5. Step 5: Solve for x
    x = 518,519,293.20/31,686.52
  6. Step 6: Final answer
    x = 16,364.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.